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From: a311581@ventures.NoSubdomain.NoDomain (Kevin Cline)
Subject: Re: Easily-Read C++?
Date: Fri, 14 Oct 1994 21:13:06 GMT
Date: 1994-10-14T21:13:06+00:00	[thread overview]
Message-ID: <CxoLLu.Av3@uunet!aadt> (raw)
In-Reply-To: EMERY.94Oct12165432@goldfinger.mitre.org

In article <EMERY.94Oct12165432@goldfinger.mitre.org>, emery@goldfinger.mitre.org (David Emery) writes:
|> The ambiguity 'inherent' in declarations such as
|> 	char * foo;
|> 	char ** foo;
|> 	char foo[];
|> 	char *foo[];
|> causes problems for C tools.  Even though each of the above is
|> 'unambiguous', common usage means that any of these can be used to
|> represent the others.   At least one tool I know of (an RPC generator
|> for C) requires the user to disambiguate some of the above
|> declarations, to make sure that the tool generates the right code.
|> 
These declarations are not equivalent.  The first is equivalent to the third,
and the second to the fourth.

The equivalence of C pointers and arrays is unfortunate.  It is maintained
by C++ for backward compatibility reasons.  Most C++ applications use
a library template array class instead of C arrays.

Kevin Cline



  reply	other threads:[~1994-10-14 21:13 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <3719k1$11gt@watnews1.watson.ibm.com>
     [not found] ` <85C92963672@annwfn.com>
1994-10-11 18:37   ` Easily-Read C++? Norman H. Cohen
1994-10-12 16:54     ` David Emery
1994-10-14 21:13       ` Kevin Cline [this message]
1994-10-21 14:38         ` Thomas M. Breuel
1994-10-22  3:10           ` Michael M. Bishop
1994-10-26  0:39             ` -mlc-+Schilling J.
1994-10-27 14:54               ` Bob Duff
1994-10-27 15:35                 ` Richard Kenner
1994-10-27 23:09                 ` Robert Dewar
1994-11-01 21:19                 ` Adam Beneschan
1994-11-02  0:46                   ` Bob Duff
1994-10-14 10:50 Bob Wells #402
  -- strict thread matches above, loose matches on Subject: below --
1994-10-12  3:06 Easily-Read C++ Ken Garlington
1994-10-05  3:00 Easily-Read C++? Ken Garlington
1994-10-05  9:42 ` Pierre Castori
1994-10-05 13:28   ` Robert Dewar
1994-10-06  2:20     ` Benjamin Ketcham
     [not found]     ` <CxDL8H.KGE@csn.org>
     [not found]       ` <milodCxH2E4.7F4@netcom.com>
     [not found]         ` <CxHJv0.Kw0@csn.org>
1994-10-12 17:03           ` John DiCamillo
1994-10-05 14:26 ` Eric S. Sessoms
1994-10-05 17:47 ` Kevin Cline
1994-10-05 22:02   ` Robert Dewar
1994-10-05 22:23     ` Richard Kenner
     [not found]       ` <124377@cup.portal.com>
1994-10-11 18:11         ` David Weller
1994-10-11 18:43         ` Robert Dewar
1994-10-12 13:15           ` Norman H. Cohen
1994-10-12 14:10             ` Robert Firth
1994-10-13 19:33             ` John D. Reading
1994-10-13  0:51         ` Keith Thompson @pulsar
1994-10-05 18:24 ` Magnus Kempe
     [not found] ` <EACHUS.94Oct6101347@spectre.mitre.org>
     [not found]   ` <371a3p$nos@gnat.cs.nyu.edu>
     [not found]     ` <1994Oct7.153254.29848@swlvx2.msd.ray.com>
     [not found]       ` <374uke$8mo@delphi.cs.ucla.edu>
     [not found]         ` <37bno4$ko4@gnat.cs.nyu.edu>
1994-10-11 13:00           ` Robert Firth
1994-10-11 13:44             ` Casper H.S. Dik
1994-10-11 19:03               ` Robert Dewar
1994-10-12 16:38               ` John DiCamillo
1994-10-11 18:52             ` Robert Dewar
1994-10-12 13:49               ` Norman H. Cohen
     [not found]           ` <37eej8$6ie@siberia.gatech.edu>
1994-10-11 18:55             ` Robert Dewar
1994-10-12 13:35               ` John M. Mills
1994-10-12 19:48                 ` Robert Dewar
     [not found]         ` <CxFr5B.K1G@news.otago.ac.nz>
     [not found]           ` <DAG.94Oct10075533@bellman.control.lth.se>
1994-10-11 17:50             ` Norman H. Cohen
     [not found]     ` <373vd2$39n@theopolis.orl.mmc.com>
     [not found]       ` <CxBvq7.GrH@inmet.camb.inmet.com>
     [not found]         ` <37bnic$kj2@gnat.cs.nyu.edu>
1994-10-11 18:02           ` Norman H. Cohen
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